real 11 (wrong decryption)

Hey everyone, I am just trying to beat real 11 and I have hit a problem, i have gotten to the 2nd part of the keycheck program, and when i receive the deciphered code and put it in the remove pages area it says the pages arent removed, am i missing something or doing something wrong.

P.S not looking for direct answers just little hints

Thank you for your time

EDIT: Never Mind I think i have to delete the backups 1st, just kinda clicked into my head what the 'error' was telling me.

Sorry about that

If you need help, dont be afraid to ask, just be sure to give the challenge an honest try before you do.